code: def test_broadcast_with_encryption(self):
      self._test_multiple_broadcasts(
          ("spark.io.encryption.enabled", "true")
      )
  
imports: import os
  import pickle
  import random
  import time
  import tempfile
  import unittest
  from py4j.protocol import Py4JJavaError
  from pyspark import SparkConf, SparkContext, Broadcast
  from pyspark.java_gateway import launch_gateway
  from pyspark.serializers import ChunkedStream
  from pyspark.sql import SparkSession, Row
label_desc: Use image node_id 4 for calling the BroadcastTest obj's underlying member method code with example usage: obj.test_broadcast_with_encryption() without return types